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Vulnerability Summary for CVE-2008-3792

Original release date: 09/03/2008
Last revised: 03/19/2012


net/sctp/socket.c in the Stream Control Transmission Protocol (sctp) implementation in the Linux kernel before does not verify that the SCTP-AUTH extension is enabled before proceeding with SCTP-AUTH API functions, which allows attackers to cause a denial of service (NULL pointer dereference and panic) via vectors that result in calls to (1) sctp_setsockopt_auth_chunk, (2) sctp_setsockopt_hmac_ident, (3) sctp_setsockopt_auth_key, (4) sctp_setsockopt_active_key, (5) sctp_setsockopt_del_key, (6) sctp_getsockopt_maxburst, (7) sctp_getsockopt_active_key, (8) sctp_getsockopt_peer_auth_chunks, or (9) sctp_getsockopt_local_auth_chunks.


CVSS Severity (version 2.0):
CVSS v2 Base Score: 7.1 HIGH
Impact Subscore: 6.9
Exploitability Subscore: 8.6
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Medium
Authentication: Not required to exploit
Impact Type: Allows disruption of service

Vendor Statements (disclaimer)

Official Statement from Red Hat (01/15/2009)
This issue did not affect the versions of Linux kernel as shipped with Red Hat Enterprise Linux 2.1, 3, 4, and 5. It was addressed in Red Hat Enterprise MRG for RHEL-5 via: https://rhn.redhat.com/errata/RHSA-2008-0857.html

References to Advisories, Solutions, and Tools

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External Source: SECTRACK
Name: 1020854
External Source: BID
Name: 31121
Type: Patch Information; Exploit
External Source: REDHAT
Name: RHSA-2008:0857
External Source: CONFIRM
Name: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=5e739d1752aca4e8f3e794d431503bfca3162df4
External Source: MLIST
Name: [oss-security] 20080926 Re: CVE-2008-4113 update: kernel: sctp: fix random memory dereference with SCTP_HMAC_IDENT option
External Source: MLIST
Name: [oss-security] 20080825 CVE request: kernel: sctp: fix potential panics in the SCTP-AUTH API
External Source: SUSE
Name: SUSE-SA:2008:053
External Source: DEBIAN
Name: DSA-1636
Type: Patch Information
External Source: SREASON
Name: 4210
External Source: XF
Name: linux-kernel-sctpauthapi-dos(45189)
External Source: MISC
Name: http://www.trapkit.de/advisories/TKADV2008-007.txt
External Source: MLIST
Name: [linux-netdev] 20080821 [PATCH] sctp: fix potential panics in the SCTP-AUTH API.
External Source: BUGTRAQ
Name: 20080911 [TKADV2008-007] Linux Kernel SCTP-AUTH API Information Disclosure Vulnerability and NULL Pointer Dereferences
External Source: MLIST
Name: [oss-security] 20080826 Re: CVE request: kernel: sctp: fix potential panics in the SCTP-AUTH API
External Source: MLIST
Name: [linux-kernel] 20080823 [GIT]: Networking
External Source: UBUNTU
Name: USN-659-1
External Source: MLIST
Name: [oss-security] 20080826 Re: CVE request: kernel: sctp: fix potential panics in the SCTP-AUTH API
External Source: CONFIRM
Name: http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-
Type: Advisory

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